An interesting feature quite useful in everyday work: I am using Ubuntu as my secondary desktop and it is quite heavily loaded. So sometimes it freezes, I mean the X windows becoming unresposive. Sometimes I can not even close the X server or switch to console. The hard reset was my only option in such situations since today. Today someone showed me the neat keyboard trick. Looks like this keyboard commands are serviced on pretty low level and they work in situations like this. It's enough to: hold ALT + SysRq and press s (that will sync your disks), then hold ALT + SysRq and press u (which will umount your disks) and then finally hold ALT + SysRq and press b (which should the reboot your system). Did you know? I didn't so I am writing it down for further reference.
2008-02-26
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